Eating disorders are often linked to weight loss, poor nutrition, and mental health. But their effects don’t stop there. The oral cavity is one of the first places where these conditions can leave visible signs, sometimes even before the patient receives a diagnosis.
For dentists and other healthcare professionals, spotting these changes early can make a real difference. It may lead to timely referrals and better outcomes for the patient.
How Bulimia Causes Dental Erosion
One of the most common oral complications of bulimia is dental erosion. Repeated vomiting exposes the teeth to gastric acid, which gradually wears away the enamel. Unlike dental caries, this damage is caused by acid, and once enamel is lost, it cannot be restored naturally.
The palatal surfaces of the upper front teeth are usually affected first. Patients may also report tooth sensitivity or notice that their teeth appear thinner or more translucent over time.
How Anorexia Affects Oral Health
In anorexia nervosa, the oral changes are mainly related to poor nutrition. Deficiencies of essential nutrients can affect the teeth, gums, and supporting tissues.
Reduced salivary flow is another common finding. Since saliva helps neutralise acids and protects the teeth, a dry mouth increases the risk of dental caries and other oral problems. Inflamed or bleeding gums may also be seen because nutritional deficiencies can affect tissue healing.
Common Dental Signs of Eating Disorders
Some of the oral findings commonly associated with eating disorders include:
- Dental erosion
- Tooth sensitivity
- Increased risk of dental caries
- Xerostomia (dry mouth)
- Swollen salivary glands, often described as a “chipmunk cheek” appearance
- Inflamed or bleeding gums
Managing the Dental Effects of Eating Disorders
Dental treatment can help manage many of these complications by reducing sensitivity, restoring damaged teeth, and preventing further deterioration. But treating the oral findings alone is not enough.
Eating disorders require a multidisciplinary approach involving medical practitioners, mental health professionals, dietitians, and dental professionals. Recognising these oral signs early can be the one of the first steps in helping a patient receive the care they need
The oral cavity can reveal more than just dental problems. The question is, are we paying enough attention to the signs it may be pointing towards?
MBH/PS